diff --git a/IPython/html/static/notebook/js/menubar.js b/IPython/html/static/notebook/js/menubar.js
index 6be9966..8e14bc2 100644
--- a/IPython/html/static/notebook/js/menubar.js
+++ b/IPython/html/static/notebook/js/menubar.js
@@ -91,14 +91,14 @@ define([
             // notebook's path.
             that.contents.new_notebook(that.notebook.notebook_path,
                 {
-                    success_callback: function (data, status, xhr) {
+                    success: function (data, status, xhr) {
                         window.open(
                             utils.url_join_encode(
                                 that.base_url, 'notebooks',
                                 data.path, data.name
                             ), '_blank');
                         },
-                    error_callback: function(xhr, status, error) {
+                    error: function(xhr, status, error) {
                         var msg;
                         if (xhr.responseJSON && xhr.responseJSON.message) {
                             msg = xhr.responseJSON.message;
diff --git a/IPython/html/static/notebook/js/notebook.js b/IPython/html/static/notebook/js/notebook.js
index 9527f89..8a774f5 100644
--- a/IPython/html/static/notebook/js/notebook.js
+++ b/IPython/html/static/notebook/js/notebook.js
@@ -1922,8 +1922,8 @@ define([
         var that = this;
         this.contents.save_file(this.notebook_path, this.notebook_name, model, {
                 extra_settings: extra_settings,
-                success_callback: $.proxy(this.save_notebook_success, this, start),
-                error_callback: function (xhr, status, error) {
+                success: $.proxy(this.save_notebook_success, this, start),
+                error: function (xhr, status, error) {
                     that.events.trigger('notebook_save_failed.Notebook');
                 }
             });
@@ -2078,12 +2078,12 @@ define([
         var that = this;
         this.contents.rename_file(this.notebook_path, this.notebook_name,
                                   this.notebook_path, new_name, {
-            success_callback: function (json, status, xhr) {
+            success: function (json, status, xhr) {
                 var name = that.notebook_name = json.name;
                 that.session.rename_notebook(name, json.path);
                 that.events.trigger('notebook_renamed.Notebook', json);
             },
-            error_callback: $.proxy(this.rename_error, this)
+            error: $.proxy(this.rename_error, this)
         });
     };
 
@@ -2134,8 +2134,8 @@ define([
         this.notebook_path = notebook_path;
         this.events.trigger('notebook_loading.Notebook');
         this.contents.load_file(notebook_path, notebook_name, {
-            success_callback: $.proxy(this.load_notebook_success, this),
-            error_callback: $.proxy(this.load_notebook_error, this)
+            success: $.proxy(this.load_notebook_success, this),
+            error: $.proxy(this.load_notebook_error, this)
         });
     };
 
@@ -2349,8 +2349,8 @@ define([
     Notebook.prototype.list_checkpoints = function () {
         var that = this;
         this.contents.list_checkpoints(this.notebook_path, this.notebook_name, {
-            success_callback: $.proxy(this.list_checkpoints_success, this),
-            error_callback: function(xhr, status, error_msg) {
+            success: $.proxy(this.list_checkpoints_success, this),
+            error: function(xhr, status, error_msg) {
                 that.events.trigger('list_checkpoints_failed.Notebook');
             }
         });
@@ -2383,8 +2383,8 @@ define([
     Notebook.prototype.create_checkpoint = function () {
         var that = this;
         this.contents.create_checkpoint(this.notebook_path, this.notebook_name, {
-            success_callback: $.proxy(this.create_checkpoint_success, this),
-            error_callback: function (xhr, status, error_msg) {
+            success: $.proxy(this.create_checkpoint_success, this),
+            error: function (xhr, status, error_msg) {
                 that.events.trigger('checkpoint_failed.Notebook');
             }
         });
@@ -2456,8 +2456,8 @@ define([
         var that = this;
         this.contents.restore_checkpoint(this.notebook_path, this.notebook_name,
                                          checkpoint, {
-            success_callback: $.proxy(this.create_checkpoint_success, this),
-            error_callback: function (xhr, status, error_msg) {
+            success: $.proxy(this.create_checkpoint_success, this),
+            error: function (xhr, status, error_msg) {
                 that.events.trigger('checkpoint_restore_failed.Notebook');
             }
         });
@@ -2487,8 +2487,8 @@ define([
         var that = this;
         this.contents.delete_checkpoint(this.notebook_path, this.notebook_name, 
                                         checkpoint, {
-            success_callback: $.proxy(this.create_checkpoint_success, this),
-            error_callback: function (xhr, status, error_msg) {
+            success: $.proxy(this.create_checkpoint_success, this),
+            error: function (xhr, status, error_msg) {
                 that.events.trigger('checkpoint_delete_failed.Notebook', [xhr, status, error]);
             }
         });
diff --git a/IPython/html/static/services/contents.js b/IPython/html/static/services/contents.js
index d953572..7dda2a3 100644
--- a/IPython/html/static/services/contents.js
+++ b/IPython/html/static/services/contents.js
@@ -34,13 +34,13 @@ define([
     /**
      * Load a file.
      *
-     * Calls success_callback with file JSON model, or error_callback with error.
+     * Calls success with file JSON model, or error with error.
      *
      * @method load_notebook
      * @param {String} path
      * @param {String} name
-     * @param {Function} success_callback
-     * @param {Function} error_callback
+     * @param {Function} success
+     * @param {Function} error
      */
     Contents.prototype.load_file = function (path, name, options) {
         // We do the call with settings so we can set cache to false.
@@ -49,8 +49,8 @@ define([
             cache : false,
             type : "GET",
             dataType : "json",
-            success : options.success_callback,
-            error : options.error_callback || function() {}
+            success : options.success,
+            error : options.error || function() {}
         };
         var url = this.api_url(path, name);
         $.ajax(url, settings);
@@ -64,30 +64,30 @@ define([
      * @param {String} path The path to create the new notebook at
      */
     Contents.prototype.new_notebook = function(path, options) {
-        var error_callback = options.error_callback || function() {};
+        var error = options.error || function() {};
         var settings = {
             processData : false,
             cache : false,
             type : "POST",
             dataType : "json",
-            success : options.success_callback || function() {},
-            error : options.error_callback || function() {}
+            success : options.success || function() {},
+            error : options.error || function() {}
         };
         $.ajax(this.api_url(path), settings);
     };
 
     Contents.prototype.delete_file = function(name, path, options) {
-        var error_callback = options.error_callback || function() {};
+        var error = options.error || function() {};
         var that = this;
         var settings = {
             processData : false,
             cache : false,
             type : "DELETE",
             dataType : "json",
-            success : options.success_callback || function() {},
+            success : options.success || function() {},
             error : function(xhr, status, error) {
                 utils.log_ajax_error(xhr, status, error);
-                error_callback(xhr, status, error);
+                error(xhr, status, error);
             }
         };
         var url = this.api_url(path, name);
@@ -103,8 +103,8 @@ define([
             data : JSON.stringify(data),
             dataType: "json",
             contentType: 'application/json',
-            success : options.success_callback || function() {}, 
-            error : options.error_callback || function() {}
+            success : options.success || function() {}, 
+            error : options.error || function() {}
         };
         var url = this.api_url(path, name);
         $.ajax(url, settings);
@@ -118,8 +118,8 @@ define([
             type : "PUT",
             data : JSON.stringify(model),
             contentType: 'application/json',
-            success : options.success_callback || function() {},
-            error : options.error_callback || function() {}
+            success : options.success || function() {},
+            error : options.error || function() {}
         };
         if (options.extra_settings) {
             $.extend(settings, options.extra_settings);
@@ -136,8 +136,8 @@ define([
         var url = this.api_url(path, name, 'checkpoints');
         var settings = {
             type : "POST",
-            success: options.success_callback || function() {},
-            error: options.error_callback || function() {}
+            success: options.success || function() {},
+            error: options.error || function() {}
         };
         $.ajax(url, settings);
     };
@@ -146,8 +146,8 @@ define([
         var url = this.api_url(path, name, 'checkpoints');
         var settings = {
             type : "GET",
-            success: options.success_callback,
-            error: options.error_callback || function() {}
+            success: options.success,
+            error: options.error || function() {}
         };
         $.ajax(url, settings);
     };
@@ -156,8 +156,8 @@ define([
         var url = this.api_url(path, name, 'checkpoints', checkpoint_id);
         var settings = {
             type : "POST",
-            success: options.success_callback || function() {},
-            error: options.error_callback || function() {}
+            success: options.success || function() {},
+            error: options.error || function() {}
         };
         $.ajax(url, settings);
     };
@@ -166,8 +166,8 @@ define([
         var url = this.api_url(path, name, 'checkpoints', checkpoint_id);
         var settings = {
             type : "DELETE",
-            success: options.success_callback || function() {},
-            error: options.error_callback || function() {}
+            success: options.success || function() {},
+            error: options.error || function() {}
         };
         $.ajax(url, settings);
     };
@@ -190,7 +190,7 @@ define([
      * @method list_notebooks
      * @param {String} path The path to list notebooks in
      * @param {Function} load_callback called with list of notebooks on success
-     * @param {Function} error_callback called with ajax results on error
+     * @param {Function} error called with ajax results on error
      */
     Contents.prototype.list_contents = function(path, options) {
         var settings = {
@@ -198,8 +198,8 @@ define([
             cache : false,
             type : "GET",
             dataType : "json",
-            success : options.success_callback,
-            error : options.error_callback || function() {}
+            success : options.success,
+            error : options.error || function() {}
         };
 
         $.ajax(this.api_url(path), settings);
diff --git a/IPython/html/static/tree/js/main.js b/IPython/html/static/tree/js/main.js
index 8244a1e..777f271 100644
--- a/IPython/html/static/tree/js/main.js
+++ b/IPython/html/static/tree/js/main.js
@@ -62,14 +62,14 @@ require([
     $('#new_notebook').button().click(function (e) {
         contents.new_notebook(common_options.notebook_path,
             {
-                success_callback: function (data, status, xhr) {
+                success: function (data, status, xhr) {
                     window.open(
                         utils.url_join_encode(
                             common_options.base_url, 'notebooks',
                             data.path, data.name
                         ), '_blank');
                     },
-                error_callback: function(xhr, status, error) {
+                error: function(xhr, status, error) {
                     var msg;
                     if (xhr.responseJSON && xhr.responseJSON.message) {
                         msg = xhr.responseJSON.message;
diff --git a/IPython/html/static/tree/js/notebooklist.js b/IPython/html/static/tree/js/notebooklist.js
index 115bd84..2b5fba4 100644
--- a/IPython/html/static/tree/js/notebooklist.js
+++ b/IPython/html/static/tree/js/notebooklist.js
@@ -143,8 +143,8 @@ define([
     NotebookList.prototype.load_list = function () {
         var that = this
         this.contents.list_contents(that.notebook_path, {
-            success_callback: $.proxy(this.draw_notebook_list, this),
-            error_callback: function(xhr, status, error) { 
+            success: $.proxy(this.draw_notebook_list, this),
+            error: function(xhr, status, error) { 
                 utils.log_ajax_error(xhr, status, error);
                 that.draw_notebook_list([], "Error connecting to server.");
             }
@@ -332,7 +332,7 @@ define([
                             class: "btn-danger",
                             click: function() {
                                 notebooklist.contents.delete_file(nbname, path, {
-                                    success_callback: function() {
+                                    success: function() {
                                         notebooklist.notebook_deleted(path, nbname);
                                     }
                                 });